.btn_open_more_wrap {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-pack: center;
    -ms-flex-pack: center;
    justify-content: center;
}
.btn_open_more {
    cursor: pointer;
    background: #fc5531;
    border-radius: 20px;
    height: 30px;
    display: inline-block;
    padding: 0 20px;
    line-height: 30px;
    color: #fff;
    margin: 15px 0px;
}
.prism-player{
    width: 100%;
    height: 500px    
}
.prism-player.fixed{
    width: 420px;
    height: 200px;
    position: fixed;
    bottom: 50px;
    right: 70px;
}